|
|
A025898
|
|
Expansion of 1/((1-x^6)*(1-x^7)*(1-x^9)).
|
|
6
|
|
|
1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 2, 1, 1, 2, 1, 1, 2, 2, 1, 3, 2, 1, 3, 2, 2, 3, 3, 2, 4, 3, 2, 4, 3, 3, 5, 4, 3, 5, 4, 3, 6, 5, 4, 6, 5, 4, 7, 6, 5, 7, 6, 5, 8, 7, 6, 9, 7, 6, 9, 8, 7, 10, 9, 7, 11, 9, 8, 11, 10, 9, 12
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,19
|
|
COMMENTS
|
a(n) is the number of partitions of n into parts 6, 7, and 9. - Joerg Arndt, Jan 23 2024
|
|
LINKS
|
Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,1,1,0,1,0,0,0,-1,0,-1,-1,0,0,0,0,0,1).
|
|
MATHEMATICA
|
CoefficientList[Series[1/((1-x^6)*(1-x^7)*(1-x^9)), {x, 0, 100}], x] (* G. C. Greubel, Jan 22 2024 *)
|
|
PROG
|
(Magma) R<x>:=PowerSeriesRing(Integers(), 100); Coefficients(R!( 1/((1-x^6)*(1-x^7)*(1-x^9)) )); // G. C. Greubel, Jan 22 2024
(SageMath)
P.<x> = PowerSeriesRing(ZZ, prec)
return P( 1/((1-x^6)*(1-x^7)*(1-x^9)) ).list()
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|